Protocols & Ports

Question 1

File Transfer Protocol (FTP)

Answer 1

20/21
TCP

Question 2

Secure Shell (SSH)
Secure File Transfer Protocol (SFTP)

Answer 2

22
TCP

Question 3

Telnet

Answer 3

23
TCP

Question 4

Simple Mail Transfer Protocol (SMTP)

Answer 4

25
TCP

Question 5

Domain Name System (DNS)

Answer 5

53
UDP

Question 6

Dynamic Host Configuration Protocol (DHCP)

Answer 6

67/68
UDP

Question 7

Trivial File Transfer Protocol (TFTP) 😏

Answer 7

69 😉
UDP

Question 8

Hypertext Transfer Protocol (HTTP)

Answer 8

80
TCP

Question 9

Post Office Protocol v3 (POP3)

Answer 9

110
TCP

Question 10

Network Time Protocol (NTP)

Answer 10

123
UDP

Question 11

Internet Message Access Protocol (IMAP)

Answer 11

143
TCP

Question 12

Simple Network Management Protocol (SNMP)

Answer 12

161/162
UDP

Question 13

Lightweight Directory Access Protocol (LDAP)

Answer 13

389
UDP

Question 14

Hypertext Transfer Protocol Secure (HTTPS) [Secure Sockets Layer (SSL)]

HTTPS [Transport Layer Security (TLS)]

Answer 14

443
TCP

Question 15

Server Message Block (SMB)

Answer 15

445
TCP

Question 16

Syslog

Answer 16

514
UDP

Question 17

SMTP TLS

Answer 17

587
TCP

Question 18

Lightweight Directory Access Protocol (over SSL) (LDAPS)

Answer 18

636
TCP

Question 19

IMAP over SSL

Answer 19

993
TCP

Question 20

POP3 over SSL

Answer 20

995
TCP

Question 21

Structured Query Language (SQL) Server

Answer 21

1433
TCP

Question 22

SQLnet

Answer 22

1521
TCP

Question 23

MySQL

Answer 23

3306
TCP

Question 24

Remote Desktop Protocol (RDP)

Answer 24

3389
TCP

Question 25

Session Initiation Protocol (SIP)

Answer 25

5060/5061
UDP

Question 26

Well-known ports

Answer 26

0-1023

Question 27

Registered ports

Answer 27

1024-49151

Question 28

Dynamic, ephemeral, or private ports

Answer 28

49152-65535